// Copyright (c) 2008-2010, Arne Claus
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
// following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this list of conditions and the following 
//   disclaimer.
// - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
//   disclaimer in the documentation and/or other materials provided with the distribution.
// - Neither the name Arne Claus nor the names of any contributors may be used to endorse or promote products
//   derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
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#ifndef __INCLUDED_CBL_SMARTPTR_H__
#define __INCLUDED_CBL_SMARTPTR_H__

#include "CBL_Defines.h"
#include "CBL_Memory.h"
#include <cstdlib>

CB_NAMESPACE_START

//! \note	Copy functions will invalidate the original pointer and set it to NULL.
//!			The wrapped object will be destroyed on delete.

// -------------------------------------------------------------------------------------------------
//	CSmartPtr
// -------------------------------------------------------------------------------------------------

template <typename TType>
class CSmartPtr
{
public:
	
	CSmartPtr();	
	
    //! \note Actually DOES change the copy
    CSmartPtr(const CSmartPtr& _rCopy);
    
    template <typename TType2>
	CSmartPtr(CSmartPtr<TType2>& _rCopy);	
    
    //! \note Stores the pointer to _pObject and invalidates the original (set to NULL).
    CSmartPtr(TType*& _rpObject);
    
	~CSmartPtr();

public:
	
	CB_FORCEINLINE TType& CB_INLINE_ATTR operator * ()					{ return *m_pObject; }
	CB_FORCEINLINE TType* CB_INLINE_ATTR operator -> ()					{ return m_pObject; }
	
	CB_FORCEINLINE const TType& CB_INLINE_ATTR operator * () const		{ return *m_pObject; }
	CB_FORCEINLINE const TType* CB_INLINE_ATTR operator -> () const		{ return m_pObject; }
	
	CB_FORCEINLINE TType* CB_INLINE_ATTR GetObject() const				{ return m_pObject; }
	CB_FORCEINLINE bool CB_INLINE_ATTR IsValid() const					{ return m_pObject != NULL; }
	
	//! \note Stores the pointer to _pObject and invalidates the original (set to NULL).
    CB_FORCEINLINE CSmartPtr& CB_INLINE_ATTR operator = (TType*& _rpNewObject);
    CB_FORCEINLINE CSmartPtr& CB_INLINE_ATTR operator = (const CSmartPtr& _rCopy);
	
	template <typename TType2>
	CB_FORCEINLINE CSmartPtr& CB_INLINE_ATTR operator = (CSmartPtr<TType2>& _rCopy);
	
	CB_FORCEINLINE TType* CB_INLINE_ATTR Retain();	
	CB_FORCEINLINE void CB_INLINE_ATTR Release()						{ Memory::SafeDelete(m_pObject); }
	
private:
	
	TType *m_pObject;
};

#include "CBL_SmartPtr.hpp"

CB_NAMESPACE_END

#endif